@charset "UTF-8";
:root{--paper:#f6f5f0;--ink:#202a31;--muted:#6d777c;--line:#d9ddd9;--blue:#0071c5;--header:78px;color-scheme:light;font-family:Arial,Helvetica,sans-serif;font-synthesis:none;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #0071c5;outline-offset:4px}button{color:inherit}button:disabled{cursor:default}button:disabled{opacity:.6}.skip{position:fixed;top:-90px;left:20px;z-index:100;padding:14px;background:#fff}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.masthead{position:sticky;top:0;z-index:30;height:var(--header);display:flex;justify-content:space-between;align-items:center;padding:0 5%;background:rgba(246,245,240,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.wordmark{display:flex;gap:13px;align-items:center;font-size:15px;font-weight:750;letter-spacing:1.3px}.wordmark small{display:block;font-size:8px;letter-spacing:1.65px;color:var(--muted);margin-top:5px}.brand-symbol{font:bold 31px/1 Georgia,serif;letter-spacing:-3px;background:var(--ink);color:var(--paper);padding:5px 8px 10px 6px}.brand-symbol span{color:#5bb2e5}.masthead nav{display:flex;gap:30px;align-items:center;font-size:12px}.masthead nav button{background:none;border:0;padding:11px 0}.masthead .current{border-bottom:2px solid var(--ink);padding:28px 0}.masthead nav button span{margin-left:12px}.intro{max-width:1400px;margin:0 auto;padding:66px 7% 0}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;display:flex;align-items:center;gap:10px}.live-dot{height:6px;width:6px;background:#2f7c58;border-radius:50%}h1{font:clamp(56px,6.9vw,104px)/.99 Georgia,'Times New Roman',serif;letter-spacing:-4px;font-weight:400;margin:28px 0 28px}h1 em{font-weight:400;color:#526f5e}.intro-bottom{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-bottom:35px}.intro-bottom p{font-size:15px;line-height:1.8;color:#5b676b;margin:0}.intro-note{display:flex;gap:17px;align-items:center;font-size:9px;letter-spacing:1.4px;line-height:1.8}.intro-note small{font-size:11px;color:var(--muted);letter-spacing:0}.intro-arrow{font-size:33px;font-family:Georgia,serif}.archive-stats{display:flex;gap:30px;padding:20px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.archive-stats b{color:var(--ink);font-size:15px;margin-right:5px}.sync-label{margin-left:auto;font-size:10px}.legend-panel{max-width:1190px;margin:24px auto 40px;border:1px solid var(--line);padding:28px 32px;background:#fff}.legend-heading{display:flex;justify-content:space-between;align-items:start}.legend-heading h2{font:30px Georgia,serif}.legend-heading button,#info-close{border:0;background:transparent;font-size:26px}.stage-legend{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.legend-item{display:flex;gap:12px;align-items:start}.legend-item strong{display:block;font-size:12px}.legend-item p{font-size:11px;color:var(--muted);line-height:1.6;margin:6px 0}.stage-symbol{color:var(--stage);width:26px;display:flex;justify-content:center}.stage-icon{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex:none}.stage-symbol .stage-icon{width:22px;height:22px}.build-legend-item{display:flex;align-items:center;gap:7px}.build-legend-icon{color:var(--stage);display:flex}.build-legend-icon .stage-icon{width:18px;height:18px}.legend-panel>p{font-size:12px;line-height:1.8}.legend-panel .fineprint{color:var(--muted);font-size:11px}.build-legend{display:flex;gap:25px;font-size:12px}.archive-layout{display:grid;grid-template-columns:110px minmax(0,1fr);max-width:1440px;margin:20px auto 0;padding-right:5%}.time-rail{position:sticky;top:100px;height:calc(100vh - 130px);max-height:690px;align-self:start;display:flex;flex-direction:column;align-items:center;gap:14px;color:var(--muted)}.rail-title{font-size:9px;letter-spacing:2px}.time-rail output{font:bold 18px Georgia,serif;color:var(--ink)}.rail-track{position:relative;flex:1;min-height:130px;display:flex;justify-content:center;width:70px}.rail-track input{writing-mode:vertical-lr;direction:ltr;appearance:none;width:3px;height:100%;background:#cfd5d1;margin:0 0 0 -18px;border:0;cursor:ns-resize;position:relative;z-index:2}.rail-track input::-webkit-slider-thumb{appearance:none;background:var(--ink);height:24px;width:9px;border-radius:2px;box-shadow:0 0 0 4px var(--paper)}.rail-track input::-moz-range-thumb{background:var(--ink);height:24px;width:9px;border:0;border-radius:2px}#year-markers{position:absolute;inset:0 0 0 38px;pointer-events:none}.year-marker{position:absolute;left:0;font-size:9px;color:var(--muted);background:none;border:0;padding:0;pointer-events:auto;transform:translateY(-50%)}.back-top{font-size:23px;line-height:32px}.archive{min-width:0}.toolbar{position:sticky;top:var(--header);z-index:20;background:var(--paper);display:flex;justify-content:space-between;gap:10px;align-items:center;padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap}.view-tabs{display:flex;gap:5px}.view-tabs button{background:none;border:0;font-size:11px;color:var(--muted);padding:10px 12px;white-space:nowrap}.view-tabs button.selected{background:var(--ink);color:#fff}.search-controls{display:flex;gap:7px;align-items:center}.search{display:flex;gap:8px;align-items:center;padding:6px 10px;border:1px solid var(--line);background:#fff}.search span{font-size:20px;line-height:17px}.search input{width:155px;border:0;background:transparent;font-size:10px;padding:3px;outline-offset:5px}.search-controls select{background:transparent;border:1px solid var(--line);font-size:10px;padding:9px;max-width:135px}.maker-key{display:flex;gap:13px;flex-wrap:wrap;padding:19px 0 16px;line-height:1.5}.maker-button{display:flex;gap:5px;align-items:center;font-size:9px;border:0;background:none;padding:0;color:#5a646b}.maker-button i{display:inline-block;width:13px;height:2px;background:var(--company)}.maker-button.active{color:#111;font-weight:700;text-decoration:underline;text-underline-offset:4px}.archive-caption{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;color:var(--muted);margin:0;padding-bottom:18px}.archive-caption span:last-child{font-size:8px;letter-spacing:1.5px}#timeline{position:relative;isolation:isolate;min-height:150px;scroll-margin-top:170px}#connections{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none;overflow:visible}.era{position:relative;padding:0 24px 50px 32px;border-top:1px solid #cbd2ce;isolation:auto;background:linear-gradient(90deg,rgba(222,231,218,.35),rgba(246,245,240,0) 70%)}.era[data-era="8"]{background:linear-gradient(90deg,rgba(218,230,235,.35),transparent 70%)}.era[data-era="16"]{background:linear-gradient(90deg,rgba(228,223,234,.35),transparent 70%)}.era[data-era="32"]{background:linear-gradient(90deg,rgba(234,224,213,.4),transparent 70%)}.era[data-era="undated"]{background:linear-gradient(90deg,rgba(226,227,224,.5),transparent 70%)}.era-header{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:2;padding:26px 0 24px;gap:20px}.era-header h2{font:25px/1.2 Georgia,serif;margin:6px 0}.era-label{font-size:9px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted)}.era-number{font:90px/.9 Georgia,serif;color:#d6ded5;letter-spacing:-5px;white-space:nowrap;opacity:.75}.era[data-era="8"] .era-number{color:#cfdee3}.era[data-era="16"] .era-number{color:#dcd5e3}.era[data-era="32"] .era-number{color:#e2d6c7}.era-number small{font:11px Arial,sans-serif;letter-spacing:1px;margin-left:6px}.year-block{position:relative;scroll-margin-top:155px;padding:0 0 25px}.year-heading{display:flex;align-items:center;gap:12px;margin:12px 0 16px;position:relative;z-index:2}.year-heading span{font:bold 12px Georgia,serif;min-width:40px}.year-heading i{height:1px;background:#d2d8d2;flex:1}.year-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 25px;position:relative}.hardware{min-width:0;z-index:3;background:var(--paper);border-bottom:1px solid #cfd4ce;padding-bottom:16px;position:relative}.photo-wrap{position:relative;aspect-ratio:1.45;background:#eeeee8;border-top:2px solid var(--company);overflow:hidden}.photo-wrap img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply;padding:16px;transition:transform .35s}.hardware:hover .photo-wrap img{transform:scale(1.035)}.photo-wrap:after{content:"";position:absolute;inset:0;border:1px solid #00000005;pointer-events:none}.info-button{position:absolute;left:9px;bottom:9px;z-index:4;border:1px solid #fff8;background:#ffffffcf;width:23px;height:23px;font:italic 12px Georgia,serif;border-radius:50%}.info-button:hover{background:#fff}.status-badges{position:absolute;right:8px;bottom:8px;display:flex;gap:4px;z-index:4;align-items:center}.badge{display:flex;align-items:center;justify-content:center;min-width:28px;height:28px;padding:0 7px;background:#fff;color:var(--stage,#53636b);border:1px solid #dce2dc;border-radius:50%;box-shadow:0 2px 8px #22332a0a;font-size:17px;cursor:help}.build-badge{font-size:12px}.entry-meta{display:flex;justify-content:space-between;margin-top:14px;font-size:8px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);gap:10px}.entry-meta .maker{color:var(--company);font-weight:700}.hardware h3{font:21px/1.2 Georgia,serif;letter-spacing:-.3px;margin:8px 0}.hardware h3 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.hardware p{font-size:10px;line-height:1.65;color:var(--muted);margin:0}.entry-footer{display:flex;gap:6px;justify-content:flex-end;align-items:center;margin-top:12px;font-size:9px;color:var(--muted)}.entry-footer a{color:var(--ink)}.entry-footer a:hover{text-decoration:underline}.info-photo .representative{color:#8a7560}.loading,#empty{padding:70px 20px;color:var(--muted);font-family:Georgia,serif}#empty button{padding:10px 15px;border:1px solid var(--line);background:#fff}#error{padding:25px;border:1px solid #d5a498;background:#fff5f0;margin:20px 0;font-size:13px;line-height:1.7}footer{max-width:1280px;margin:30px auto 0;padding:50px 6% 60px;display:flex;justify-content:space-between;border-top:1px solid var(--line)}.footer-brand{font-size:12px;font-weight:700;letter-spacing:2px}footer p{font-size:11px;line-height:1.9;color:var(--muted)}footer a{font-size:12px}dialog{max-width:540px;width:90%;border:1px solid var(--line);padding:32px;background:var(--paper);color:var(--ink)}dialog::backdrop{background:#1f2a3166;backdrop-filter:blur(3px)}dialog h2{font:28px Georgia,serif}#info-close{position:absolute;right:16px;top:10px}#info-body{font-size:12px;line-height:1.8;overflow-wrap:anywhere}#info-body a{text-decoration:underline;text-underline-offset:3px}.info-photo img{width:100%;max-height:240px;object-fit:contain;margin:10px 0}
@media(min-width:1450px){.intro{padding-left:100px;padding-right:100px}.year-grid{gap:32px}.hardware h3{font-size:24px}.photo-wrap{aspect-ratio:1.5}}
@media(max-width:1100px){.toolbar{align-items:stretch;flex-direction:column}.search-controls{justify-content:space-between}.search{flex:1}.search input{width:100%}.intro{padding-top:45px}.archive-layout{grid-template-columns:85px minmax(0,1fr);padding-right:3%}.year-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.archive-caption span:last-child{display:none}.era{padding-right:15px;padding-left:24px}.sync-label{font-size:9px}}
@media(max-width:650px){:root{--header:66px}.masthead{padding:0 18px}.wordmark{font-size:11px;gap:9px}.wordmark small{font-size:6px}.brand-symbol{font-size:25px}.masthead nav{gap:14px;font-size:10px}.masthead .current{display:none}.intro{padding:38px 23px 0}h1{font-size:57px;letter-spacing:-2.8px}.intro-bottom{display:block;padding-bottom:22px}.intro-bottom p{font-size:13px}.intro-note{display:none}.archive-stats{gap:16px;flex-wrap:wrap;font-size:9px}.sync-label{margin:0;flex-basis:100%}.archive-layout{grid-template-columns:49px minmax(0,1fr);padding-right:14px;margin-top:10px}.time-rail{top:86px;height:calc(100svh - 110px);width:45px}.time-rail output{font-size:14px}.rail-title{font-size:7px}.rail-track{width:37px}.rail-track input{margin-left:-15px}#year-markers{left:20px}.year-marker{font-size:7px}.toolbar{padding:10px 0}.view-tabs{gap:0;justify-content:space-between}.view-tabs button{font-size:9px;padding:9px 6px}.search-controls{flex-wrap:wrap}.search{flex-basis:100%}.search-controls select{flex:1;max-width:none;padding:8px}.maker-key{gap:10px;padding-top:15px;max-height:74px;overflow:auto}.maker-button{font-size:8px}.archive-caption{font-size:8px;padding-bottom:14px}.era{padding:0 10px 28px 13px}.era-header{padding:20px 0 16px;gap:5px}.era-header h2{font-size:22px;max-width:160px}.era-number{font-size:60px;letter-spacing:-3px}.era-number small{font-size:8px}.era-label{font-size:7px}.year-grid{grid-template-columns:minmax(0,1fr);gap:22px}.photo-wrap{aspect-ratio:1.5}.hardware h3{font-size:23px}.hardware p{font-size:11px}.entry-meta{font-size:9px}.entry-footer{font-size:10px}.stage-legend{grid-template-columns:1fr 1fr;gap:14px}.legend-panel{margin:15px;padding:20px}.legend-heading h2{font-size:25px}.build-legend{gap:12px;flex-wrap:wrap}footer{padding:30px 24px;gap:20px;flex-direction:column}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

@media(max-width:650px){.maker-key{flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;max-height:none;scrollbar-width:thin}.maker-button{flex-shrink:0}.search-controls>label:not(.search){flex:1}.search-controls select{width:100%}}

@media(max-width:650px){.year-block{scroll-margin-top:225px}#timeline{scroll-margin-top:225px}}

/* Circuit-board lineage: reserve the right gutter for visible, separate maker runs. */
#timeline{--trace-gutter:94px}
#eras{padding-right:var(--trace-gutter)}
#connections{z-index:4}
.year-grid{row-gap:72px}
.year-block{padding-bottom:38px}
.trace-wire,.trace-clearance{fill:none;stroke-linejoin:miter;stroke-linecap:butt;vector-effect:non-scaling-stroke}
.trace-clearance{stroke:var(--paper);stroke-width:6.5px}
.trace-wire{stroke-width:2.8px;stroke-opacity:.95}
.trace-pad{fill:var(--paper);stroke-width:2.8px;vector-effect:non-scaling-stroke}
@media(max-width:1100px){#timeline{--trace-gutter:78px}.year-grid{row-gap:72px}}
@media(max-width:650px){#timeline{--trace-gutter:54px}.trace-wire{stroke-width:2.3px}.trace-pad{stroke-width:2.3px}.year-grid{row-gap:72px}.era{padding-right:8px}}

/* Components feed computers through the same right-side PCB routing gutter. */
#timeline{--trace-gutter:156px}
.connection-required .trace-wire{stroke-width:2.2px;stroke-dasharray:7 4;stroke-opacity:.85}
.connection-optional .trace-wire{stroke-width:2.2px;stroke-dasharray:2 5;stroke-linecap:round;stroke-opacity:.85}
.connection-required .trace-clearance,.connection-optional .trace-clearance{stroke-width:3.5px}
.connection-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;padding:12px 0;border-bottom:1px solid var(--line);font-size:10px;color:#56665f}
.connection-controls label{display:flex;align-items:center;gap:6px}
.connection-controls input{accent-color:#41685f}
.connection-controls select{font:inherit;padding:7px;border:1px solid var(--line);background:var(--paper);max-width:260px}
.connection-key{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:9px;color:var(--muted);padding:10px 0}
.connection-key span{display:flex;align-items:center;gap:6px}
.connection-key i{width:21px;border-top:2px solid #41685f}
.connection-key .required-key{border-top-style:dashed}
.connection-key .optional-key{border-top-style:dotted}
#trace-summary{font-size:9px;color:var(--muted);margin:0 0 12px}
.trace-computer{margin-top:12px;padding:6px 9px;background:transparent;border:1px solid #b9c8bd;color:#41685f;font-size:10px;text-align:left}
.trace-computer:hover{background:#e8eee6}.trace-computer.active{background:#41685f;border-color:#41685f;color:#fff}.trace-computer.active:hover{background:#2f4f48}
@media(max-width:1100px){#timeline{--trace-gutter:128px}}
@media(max-width:650px){#timeline{--trace-gutter:64px}.connection-controls{gap:9px;font-size:10px}.computer-picker{flex-basis:100%;flex-wrap:wrap}.connection-controls select{width:100%;max-width:none}.connection-key{font-size:8px;gap:9px}.connection-required .trace-wire,.connection-optional .trace-wire{stroke-width:1.7px}.connection-required .trace-clearance,.connection-optional .trace-clearance{stroke-width:2.5px}.hardware h3{font-size:21px}}

/* Independent tracks: hardware dependencies left, maker lineage right. */
.timeline-scroll{overflow-x:auto;overscroll-behavior-x:contain;padding-bottom:12px}
#timeline{--left-gutter:0px;--right-gutter:0px;--board-width:710px;min-width:calc(var(--board-width) + var(--left-gutter) + var(--right-gutter))}
#eras{padding-left:var(--left-gutter);padding-right:var(--right-gutter)}
.year-grid{grid-template-columns:repeat(3,minmax(200px,1fr));row-gap:18px}
.hardware-kind-group{margin-bottom:20px}
.kind-heading{font-size:8px;letter-spacing:1.4px;color:var(--muted);margin:8px 0 12px}
.trace-wire{stroke-width:2.5px;stroke-opacity:1}
.trace-clearance{stroke-width:5px}
.trace-pad{stroke-width:2.5px}
.connection-required .trace-wire,.connection-optional .trace-wire{stroke-width:2px;stroke-opacity:.95}
.connection-required .trace-clearance,.connection-optional .trace-clearance{stroke-width:4px}
.connection-controls label:has(input:disabled){opacity:.5}
@media(max-width:1100px){#timeline{--board-width:470px}.year-grid{grid-template-columns:repeat(2,minmax(190px,1fr))}}
@media(max-width:650px){#timeline{--board-width:224px}.year-grid{grid-template-columns:minmax(190px,1fr)}.kind-heading{font-size:8px}.trace-wire{stroke-width:2.3px}.connection-required .trace-wire,.connection-optional .trace-wire{stroke-width:2px}}

#timeline{--board-width:470px}.year-grid{grid-template-columns:repeat(2,minmax(190px,1fr))}@media(min-width:1600px){#timeline{--board-width:710px}.year-grid{grid-template-columns:repeat(3,minmax(200px,1fr))}}@media(max-width:650px){#timeline{--board-width:224px}.year-grid{grid-template-columns:minmax(190px,1fr)}}



.hardware{scroll-margin-top:225px}

/* Qualified dates remain readable without mistaking manual dates for chip launches. */



/* Later implementation parts are distinguished from original machine components. */
.connection-reconstruction .trace-wire{stroke-dasharray:10 3 2 3;stroke-width:2.5px}.connection-key .reconstruction-key{border-top-style:dashed;border-top-color:#ed1c24}.era[data-era="18"]{background:linear-gradient(90deg,rgba(220,227,234,.4),transparent 70%)}

/* Only the wire strokes and hollow pads receive pointer input. */
.trace-hit{fill:none;stroke:transparent;pointer-events:stroke;cursor:pointer;vector-effect:non-scaling-stroke}
.trace-jump{cursor:pointer}.trace-jump .trace-pad{pointer-events:all}
.trace-jump:focus-visible{outline:none}.connection:hover .trace-wire,.connection:focus-within .trace-wire{stroke-width:3px;stroke-opacity:1}
.connection:focus-within .trace-clearance{stroke-width:6px}
.hardware:focus{outline:2px solid var(--company);outline-offset:6px}
.wire-help{font-size:10px;color:var(--muted);margin:0 0 14px;line-height:1.6}

/* Shared expansion buses sit beyond every maker lane. */
.bus-trunk{stroke-width:3.5px!important}.bus-tap{stroke-width:2px}.bus-label{font:8px Arial,Helvetica,sans-serif;letter-spacing:.2px;pointer-events:none;paint-order:stroke;stroke:var(--paper);stroke-width:3px}
.bus-junction{pointer-events:none}.bus-control{cursor:pointer}.bus-control .bus-pad{pointer-events:all}.bus-control:focus-visible{outline:none}.bus-control:hover .trace-wire,.bus-control:focus-within .trace-wire{stroke-width:3px;stroke-opacity:1}.bus-control:focus-within .trace-clearance{stroke-width:7px}
.connection-key .bus-key{border-top-width:4px;border-color:var(--ink)}
#bus-dialog{width:min(460px,calc(100vw - 32px));max-height:80vh;overflow:auto;padding:24px;border:1px solid var(--line);color:var(--ink);background:var(--paper)}
#bus-dialog::backdrop{background:rgba(32,42,49,.35)}#bus-close{float:right;background:none;border:0;font-size:25px}#bus-title{font:25px/1.2 Georgia,serif;margin:6px 26px 12px 0}#bus-dialog>p{font-size:12px;line-height:1.6;color:var(--muted)}#bus-members{list-style:none;padding:0;margin:18px 0 0}#bus-members li{border-top:1px solid var(--line);padding:12px 0}#bus-members a{display:block;text-decoration:underline;text-underline-offset:3px;font-size:14px}#bus-members small{display:block;margin-top:5px;color:var(--muted);font-size:10px}

.bus-direct-hit,.bus-rail-hit{fill:transparent;pointer-events:all;cursor:pointer}

.compatible-net .trace-wire{stroke-dasharray:8 3 2 3;stroke-width:2.2px}.compatible-trunk{stroke-width:2.8px!important}.connection-key .compatible-key{border-top-style:double;border-top-width:3px}#connection-evidence a{display:block;font-size:11px;line-height:1.5;margin-top:12px;text-decoration:underline;text-underline-offset:3px}

/* Member chips share a single historical chipset card and status. */
.chipset-members{border-top:1px solid var(--line);margin:16px 0 12px;padding-top:12px}.chipset-members h4{margin:0 0 10px;font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted)}.chipset-members ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}.chipset-members li{display:grid;grid-template-columns:minmax(65px,max-content) minmax(0,1fr);gap:12px;align-items:baseline;font-size:11px;line-height:1.5}.chipset-members strong{font-family:ui-monospace,monospace;font-size:12px}.chipset-members li span{color:var(--muted);overflow-wrap:anywhere}

.wire-context{font-size:11px;line-height:1.6;color:var(--muted);margin:6px 0 12px;max-width:70ch}

/* Fit the available window before introducing horizontal diagram scrolling. */
.archive-layout{width:100%;max-width:none;padding-inline:clamp(14px,3vw,64px)}
#timeline{--card-min-width:200px;--card-columns:1;--board-width:256px}
.year-grid{grid-template-columns:repeat(var(--card-columns),minmax(var(--card-min-width),1fr))}
@media(max-width:650px){#timeline{--card-min-width:190px;--board-width:212px}}

.bus-row-wire{stroke-width:2.5px}.bus-direction{font-size:12px;color:var(--muted)}.bus-evidence{font-size:11px;color:var(--muted);line-height:1.6;margin-top:8px}.bus-evidence summary{cursor:pointer}.bus-evidence p{font-size:11px}.bus-evidence a{font-size:11px!important}

.hardware .summary{margin:0 0 6px;font-size:12px;line-height:1.5;color:var(--muted)}
#info-dialog{max-height:88vh;overflow:auto}#info-dialog h2{margin:4px 30px 10px 0;line-height:1.15}
.info-kind{display:flex;justify-content:space-between;gap:10px;margin:0;font-size:9px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}.info-kind .maker{color:var(--company);font-weight:700}
.info-summary{margin:0 0 18px;font-size:14px;line-height:1.6}
.info-date h3,.info-date h4,.chipset-members h4{margin:0 0 6px;font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted)}.info-date h4{margin-top:12px}.info-date p{margin:0 0 6px}.info-date a{display:block;margin-top:5px}
.info-issue{margin:14px 0 0}
.info-photo{margin-top:20px;border-top:1px solid var(--line);padding-top:12px}.info-photo summary{cursor:pointer;font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--muted)}.info-photo summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.info-photo p{margin:4px 0}

/* Keep controls and their live totals together; wrap the totals on small screens. */
.connection-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;padding:12px 0;border-bottom:1px solid var(--line)}
.connection-row .connection-controls{flex:0 1 auto;min-width:0;padding:0;border-bottom:0}
.connection-row #trace-summary{flex:1 1 320px;margin:0 0 0 auto;text-align:right;line-height:1.6}
.wire-help strong{font-weight:700;color:var(--ink)}
.archive-caption{gap:8px 16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:14px}
.archive-caption #result-count{margin-left:auto;text-align:right;white-space:nowrap}
@media(max-width:650px){.connection-row .connection-controls{width:100%}.connection-row #trace-summary{flex-basis:100%}}

.photo-placeholder{width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:26px 18px 44px;text-align:center;color:var(--muted)}.photo-placeholder strong{font:20px Georgia,serif;color:var(--company)}.photo-placeholder span{font-size:11px;letter-spacing:.7px}

/* Hardware / software view switch */
.intro-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.view-switch{display:inline-flex;border:1px solid var(--ink);border-radius:999px;overflow:hidden}
.view-switch button{background:none;border:0;border-radius:0;font-family:inherit;padding:7px 14px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);cursor:pointer}
.view-switch button.selected{background:var(--ink);color:#fff}
.view-switch button:focus-visible{outline:2px solid var(--blue);outline-offset:-3px}

/* Software view */
.software-view{padding:0 5% 48px}
.software-layout{display:grid;grid-template-columns:110px minmax(0,1fr);max-width:1440px;margin:20px auto 0}.software-main{min-width:0}
.software-year{scroll-margin-top:100px;margin:12px 0 16px}
#software-rows .year-heading{margin:28px 0 16px}
#software-markers{position:absolute;inset:0 0 0 38px;pointer-events:none}
@media(max-width:1100px){.software-layout{grid-template-columns:85px minmax(0,1fr)}}
@media(max-width:650px){.software-layout{grid-template-columns:49px minmax(0,1fr);margin-top:10px}#software-markers{left:20px}}
.software-view[hidden],.archive-layout[hidden]{display:none}
.software-view .view-tabs{flex-wrap:wrap}
.software-view .view-tabs button{border-bottom:2px solid transparent}
.software-view .view-tabs button:not(:first-child){border-bottom-color:var(--category)}
.software-view .view-tabs button.selected{border-bottom-color:var(--ink)}
#software-key span{display:inline-flex;align-items:center;gap:8px}
#software-key i{display:inline-block;width:34px;height:0;border-top:2px solid #53636b}
#software-key i.software-key-lineage{border-top-style:dashed;border-top-color:#7a5c9a}
#software-board{position:relative;padding:18px 0 8px}
.software-scroll{overflow-x:hidden}
#software-wires,#software-pads{position:absolute;left:0;top:0;pointer-events:none;z-index:0;overflow:visible}
#software-pads{z-index:2}
#software-rows{position:relative;z-index:1;display:grid;gap:64px}
.software-row{display:grid;grid-template-columns:230px 1fr;gap:48px;align-items:start}
.software-columns{display:flex;flex-wrap:wrap;gap:36px 44px;align-items:flex-start}
.software-layer{display:grid;gap:8px}
.software-layer>h4{margin:0;font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:6px}
.software-cards{display:flex;flex-wrap:wrap;gap:32px 44px}
.software-card{position:relative;width:214px;background:var(--paper);border:1px solid #cfd4ce;border-top:3px solid var(--category);padding:12px 12px 12px;display:flex;flex-direction:column;gap:6px;transition:opacity .15s,box-shadow .15s}
.software-card>.photo-wrap{margin:-12px -12px 4px;width:calc(100% + 24px);aspect-ratio:1.5;border-top:0}.software-card>.photo-wrap img{width:100%;height:100%;object-fit:cover}
.software-card:focus-visible,.software-card.selected{outline:2px solid var(--blue);outline-offset:2px;box-shadow:0 6px 20px #22332a22}
.software-card.dim{opacity:.35}
.software-card-head{display:flex;align-items:center;gap:7px;min-height:24px}
.software-card-head .info-button{position:static;margin-left:auto;flex:none}
.software-tag{font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);line-height:1.3}
.category-icon{flex:none;display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--category);color:#fff}
.category-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.software-card h3{margin:2px 0 0;font:700 15px/1.25 Georgia,serif}
.software-card h3 a{color:var(--ink);text-decoration:none}
.software-card h3 a:hover{text-decoration:underline}
.software-card .summary{margin:0;font-size:11.5px}
.software-meta{margin:0;font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.software-card .entry-footer{justify-content:space-between;margin-top:6px}
.software-card .status-badges{position:static}
.software-system{width:230px;border-top-color:var(--category);padding:0 0 14px}
.software-system .entry-meta,.software-system h3,.software-system .summary,.software-system .software-meta{padding:0 12px}
.software-system .entry-meta{margin-top:12px}
.software-system .photo-wrap{border-top:0}
.software-system .info-button{left:9px;bottom:9px}
.software-wire{fill:none;stroke:#53636b;stroke-width:1.5;opacity:.55;transition:opacity .15s,stroke-width .15s}
.software-wire.lineage{stroke:#7a5c9a;stroke-dasharray:6 4}
.software-wire.dim{opacity:.1}
.software-wire.hot{opacity:1;stroke-width:2.5}
.software-pad{fill:#fff;stroke:#53636b;stroke-width:2px;stroke-opacity:.7;transition:stroke-opacity .15s}.software-pad.lineage{stroke:#7a5c9a}.software-pad.dim{stroke-opacity:.2}.software-pad.hot{stroke-opacity:1}
#software-empty{text-align:center;padding:60px 0}
.software-facts{display:grid;grid-template-columns:max-content 1fr;gap:4px 14px;font-size:12px;margin:0}
.software-facts dt{color:var(--muted)}.software-facts dd{margin:0}
.software-jumps{display:flex;flex-wrap:wrap;gap:6px;margin:0}
.software-jump{border:1px solid var(--line);background:#fff;padding:5px 9px;font-size:11px;border-radius:999px;cursor:pointer}
.software-jump:hover{border-color:var(--ink)}
.software-steps{margin:0;padding-left:20px;font-size:12px;line-height:1.55;color:var(--muted)}
@media(max-width:900px){.software-row{grid-template-columns:1fr;gap:20px}.software-view{padding:0 16px 40px}.masthead nav{gap:12px}}
@media(max-width:650px){.masthead nav>a{display:none}.view-switch button{padding:7px 10px;font-size:10px}.masthead nav button#legend-toggle span{display:none}.masthead nav{gap:12px}}

.multi-select{position:relative;font-size:10px}
.multi-select summary{list-style:none;cursor:pointer;border:1px solid var(--line);background:var(--paper);padding:9px 26px 9px 9px;max-width:170px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;position:relative}
.multi-select summary::-webkit-details-marker{display:none}
.multi-select summary::after{content:"";position:absolute;right:10px;top:50%;width:5px;height:5px;border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);transform:translateY(-70%) rotate(45deg)}
.multi-select.active summary{border-color:var(--ink)}
.multi-select summary:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.multi-select-panel{position:absolute;z-index:30;left:0;top:calc(100% + 4px);min-width:230px;max-height:340px;overflow:auto;background:var(--paper);border:1px solid var(--ink);box-shadow:0 8px 24px #22332a33;padding:6px;display:flex;flex-direction:column}
.multi-select-option{display:flex;align-items:center;gap:8px;padding:6px 8px;font-size:11px;cursor:pointer}
.multi-select-option:hover{background:#eceae2}
.multi-select-option small{margin-left:auto;color:var(--muted)}
.multi-select-clear{margin:4px 2px 2px;padding:7px;border:1px solid var(--line);background:transparent;font-size:10px}
@media(max-width:1100px){.multi-select summary{max-width:none}}